You are aware that the items are one time use, and they’re only cheap if you farm the rep, right? 40-50g they said, if you currently have a bug.
So far as I’ve seen that might be permanent. You might never get them cheap in the future. How would you feel if you had to pay 3,000g a pop every time you wanted to change from Waterwalking to Slow Fall to Anti-daze? Would it anger you to learn that we got it for 40g a pop instead?